Why are Mn2+compounds more stable than F | Class 12 Chemistry Chapter The d-and f-Block Elements, The d-and f-Block Elements NCERT Solutions

Question:

Why are Mn2+compounds more stable than Fe2+ towards oxidation to their +3 state?

Answer:

Electronic configuration of Mn2+ is [Ar]18 3d5.

Electronic configuration of Fe2+ is [Ar]18 3d6.

It is known that half-filled and fully-filled orbitals are more stable. Therefore, Mn in (+2) state has a stable d5 configuration. This is the reason Mn2+shows resistance to oxidation to Mn3+. Also, Fe2+has 3d6 configuration and by losing one electron, its configuration changes to a more stable 3d5 configuration. Therefore, Fe2+ easily gets oxidized to Fe+3 oxidation state.


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Comments

  • seya
  • 2019-03-08 13:48:59

easy to understand


  • sudip das
  • 2019-03-07 13:24:32

your answers are great but i would like to suggest that you should give the answer in such a manner that we can scroll down because here at each step we have to click which is time consuming


  • Akrati
  • 2019-02-13 12:05:32

Question is different it is asking why mn+2 is more stable but your answer says that Fe is more stable


  • neha
  • 2018-12-16 19:04:58

Best


  • YASH
  • 2018-11-30 07:51:02

grt


  • Rohit soni
  • 2018-11-22 00:18:46

But in question fe+2 is more stable than MN+2,why,total chemistry is wrong.total exception👿


  • Omkar ojha
  • 2018-09-05 13:41:10

Best explain


  • Rohit kumar
  • 2018-04-27 16:59:46

Very useful, thanks


  • Deepak
  • 2018-04-16 23:08:10

Thanks


  • Alisha
  • 2018-03-11 12:08:25

Good answer helpful


Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 2: Why are Mn2+compounds more stable than Fe2+ towards oxidation to their +3 state?....